2016 YAMAHA SR400 fuel

Table of contents
Safety information............................ 1-1
Description ........................................ 2-1
Left view .......................................... 2-1
Right view ........................................ 2-2
Controls and instruments ................ 2-3
Instrument and control functions ... 3-1
Main switch/steering lock ................ 3-1
Indicator lights and warning lights ... 3-2
Speedometer unit ..... ....................... 3-3
Tachometer ..................................... 3-4
Handlebar switches ......................... 3-4
Clutch lever ..................................... 3-6
Shift pedal ....................................... 3-6
Brake lever ...................................... 3-7
Brake pedal .............. ....................... 3-7
Fuel tank cap ................................... 3-8
Fuel ................................................. 3-9
Fuel tank breather/overflow hose ........................................... 3-10
Catalytic converter......................... 3-11
Fuel cock ....................................... 3-11
Kickstarter .... ............................. .... 3-12
Decompression lever..................... 3-12
Seat ............................................... 3-13
Adjusting the shock absorber assemblies ................................. 3-13
Sidestand ...................................... 3-14
Ignition circuit cut- off system ......... 3-15
For your safety – pre-operation
checks ................................................ 4-1
Operation and im portant riding
points ................................................. 5-1
Starting the engine .......................... 5-2
Starting trouble ................................ 5-3
Shifting ............................................ 5-3
Tips for reducing fuel consumption................................. 5-5
Engine break-in ............................... 5-5
Parking ............................................ 5-6 Periodic maintenance and
adjustment
........................................ 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the
emission control system .............. 6-3
General maintenance and lubrication chart ........................... 6-4
Removing and installing the panel ............................................ 6-7
Checking the spark plug ................. 6-8
Engine oil and oil filter element ....... 6-9
Replacing the air filter element ..... 6-13
Checking the engine idling
speed ......................................... 6-14
Checking the throttle grip free play ............................................ 6-14
Valve clearance ............................ 6-15
Tires .............................................. 6-15
Spoke wheels........... ..................... 6-17
Adjusting the clutch lever free play ............................................ 6-18
Adjusting the brake lever free play ............................................ 6-19
Adjusting the brake pedal height
and free play .............................. 6-20
Checking the shift pedal................ 6-21
Brake light switches ...................... 6-22
Checking the front brake pads and rear brake shoes ................ 6-22
Checking the brake fluid level ....... 6-23
Changing the brake fluid .............. 6-24
Drive chain slack ........................... 6-25
Cleaning and lubricating the drive
chain .......................................... 6-26
Checking and lubricating the cables ........................................ 6-27
Checking and lubricating the throttle grip and ca ble ................ 6-27
Checking and lubricating the
brake and clutch levers.............. 6-28
Checking and lubricating the brake pedal ................................ 6-28
Checking and lubricating the centerstand and sidestand ........ 6-29
Lubricating the swingarm pivots.... 6-29
Checking the front fork .................. 6-30
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Safety information
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appropriate. Refer to page 6-15 for tire
specifications and more information on
replacing your tires.
Transporting the Motorcycle
Be sure to observe following instruc-
tions before transporting the motorcy-
cle in another vehicle.
Remove all loose items from the
motorcycle.
Check that the fuel cock (if
equipped) is in the “OFF” position
and that there are no fuel leaks.
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
Shift the transmission in gear (for
models with a manual transmis-
sion).
Secure the motorcycle with tie-
downs or suitable straps that are
attached to solid parts of the mo-
torcycle, such as the frame or up-
per front fork triple clamp (and not,
for example, to rubber-mounted
handlebars or turn signals, or parts
that could break). Choose the lo-
cation for the straps carefully so
the straps will not rub against
painted surfaces during transport.
The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the mo-
torcycle will not bounce excessive-
ly during transport.
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2-1
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Description
EAU63371
Left view
1. Engine oil dipstick (page 6-9)
2. Engine oil filler cap (page 6-9)
3. Fuel tank cap (page 3-8)
4. Fuel cock (page 3-11)
5. Battery (page 6-31)
6. Fuse (page 6-33)
7. Shock absorber assembly spring preload adjusting ring (page 3-13)
8. Shift pedal (page 3-6)
1, 2 4
5, 63
7
8
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Instrument and control functions
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14 1. Insert the key.
2. With the key in the “LOCK” posi-
tion, push the key in and turn it to
“OFF”.
EAU59680 (Parking)
The hazard lights and turn signal lights
can be turned on, but all other electrical
systems are off. The key can be re-
moved.
The steering must be locked before the
key can be turned to “ ”.
NOTICE
ECA20760
Using the hazard or turn signal
lights for an extended length of time
may cause the battery to discharge.
EAU49398
Indicator light s and warning
lights
EAU11022Turn signal indicator light “ ”
This indicator light flashes when a turn
signal light is flashing.
EAU11061Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11354Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
2.2 L (0.58 US gal, 0.48 Imp.gal). When
this occurs, refuel as soon as possible.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. The warning light should come
on for a few seconds, and then go off.
1. Engine trouble warning light “ ”
2. Fuel level warning light “ ”
3. Neutral indicator light “ ”
4. High beam indicator light “ ”
5. Turn signal indicator light “ ”
4
2
153
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Instrument and control functions
3-3
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If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
EAU11486Engine trouble warning light “ ”
This warning light comes on if a prob-
lem is detected in the electrical circuit
monitoring the engine. If this occurs,
have a Yamaha dealer check the vehi-
cle.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. The warning light should come
on for a few seconds, and then go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
EAU11631
Speedometer unit
The speedometer unit is equipped with
a speedometer, an odometer and a
tripmeter. The speedometer shows rid-
ing speed. The odometer shows the to-
tal distance traveled. The tripmeter
shows the distance traveled since it
was last set to zero with the reset knob.
The tripmeter can be used to estimate
the distance that can be traveled with a
full tank of fuel. This information will en-
able you to plan future fuel stops.
1. Reset knob
2. Speedometer
3. Odometer
4. Tripmeter
123 4
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Instrument and control functions
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EAU13125
Fuel tank cap
To remove the fuel tank cap
Slide the fuel tank cap lock cover open,
insert the key into the lock, and then
turn it 1/4 turn clockwise. The lock will
be released and the fuel tank cap can
be removed.
To install the fuel tank cap 1. Insert the fuel tank cap into the tank opening with the key inserted
in the lock and with the “ ” mark
facing forward.
2. Turn the key counterclockwise to the original position, remove it, and
then close the lock cover.
TIP
The fuel tank cap cannot be installed
unless the key is in the lock. In addition,
the key cannot be removed if the cap is
not properly installed and locked.
WARNING
EWA10132
Make sure that the fuel tank cap is
properly installed before riding.
Leaking fuel is a fire hazard.
1. Unlock.
2. Fuel tank cap lock cover
1. “ ” mark
2. Fuel tank cap lock cover
2
1
1
2
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Instrument and control functions
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EAU13222
Fuel
Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions. 1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vicin-
ity of sparks, open flames, or other
sources of ignition such as the pilot
lights of water heaters and clothes
dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.
3. Wipe up any spilled fuel immedi- ately. NOTICE: Immediately wipe off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10072]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15152
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-
ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU57691
NOTICE
ECA11401
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-
1. Maximum fuel level
2. Fuel tank filler tube
1 2
Recommended fuel:
Regular unleaded gasoline (Gasohol
[E10] acceptable)
Fuel tank capacity:
12 L (3.2 US gal, 2.6 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on): 2.2 L (0.58 US gal, 0.48 Imp.gal)
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Instrument and control functions
3-10
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14 curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that contain-
ing methanol. Gasohol containing
ethanol can be used if the ethanol con-
tent does not exceed 10% (E10). Gas-
ohol containing methanol is not
recommended by Yamaha because it
can cause damage to the fuel system
or vehicle performance problems.
EAU39453
Fuel tank breat
her/overflow
hose
Before operating the motorcycle:
Check the fuel tank breather/over-
flow hose connection.
Check the fuel tank breather/over-
flow hose for cracks or damage,
and replace it if necessary.
Make sure that the end of the fuel
tank breather/overflow hose is not
blocked, and clean it if necessary.
1. Fuel tank breather/overflow hose
1
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